the iconic guitar played by bob dylan at one of his most infamous concerts coming to christies auction house. >> break through in surgery offering hope to some who have lost the ability to walk, including a young woman who was the first to undergo the procedure. on august 20th, al jazeera america introduced jew there's good news for you tech savvy travelers, the f.a.a. saying it's ok to use most electronic devices when you take off, even during takeoffs and landings. travelers can listen to music, play games and read the tablets, but won't be able to make phone calls or use the internet below 10,000 feet. joining us now to discuss all of this is douglas kidd, the executive director of the national association of airline passengers. he's also a member of that committee that advised the f.a.a. about the changes. he's in washington, d.c. this morning. they have studied this issue for years, so why now and what are the challenges that the industry still faces? >> as you said, they have been studying this for years and because of mounting public pressure, the f.a.a. decided to look into mat